Thyra_EpetraLinearOp.hpp

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#ifndef THYRA_EPETRA_LINEAR_OP_HPP
#define THYRA_EPETRA_LINEAR_OP_HPP

#include "Thyra_LinearOpBase.hpp"
#include "Thyra_EpetraLinearOpBase.hpp"
#include "Thyra_ScaledLinearOpBase.hpp"
#include "Thyra_RowStatLinearOpBase.hpp"
#include "Thyra_SpmdVectorSpaceBase.hpp"

#include "Epetra_RowMatrix.h"


namespace Thyra {


class EpetraLinearOp
  : virtual public LinearOpBase<double>,
    virtual public ScaledLinearOpBase<double>,
    virtual public RowStatLinearOpBase<double>,
    virtual public EpetraLinearOpBase
{
public:


  EpetraLinearOp();

  void initialize(
    const RCP<Epetra_Operator> &op,
    EOpTransp opTrans = NOTRANS,
    EApplyEpetraOpAs applyAs = EPETRA_OP_APPLY_APPLY,
    EAdjointEpetraOp adjointSupport = EPETRA_OP_ADJOINT_SUPPORTED,
    const RCP<const VectorSpaceBase<double> > &range = Teuchos::null,
    const RCP<const VectorSpaceBase<double> > &domain = Teuchos::null
    );

  void partiallyInitialize(
    const RCP<const VectorSpaceBase<double> > &range,
    const RCP<const VectorSpaceBase<double> > &domain,
    const RCP<Epetra_Operator> &op,
    EOpTransp opTrans = NOTRANS,
    EApplyEpetraOpAs applyAs = EPETRA_OP_APPLY_APPLY,
    EAdjointEpetraOp adjointSupport = EPETRA_OP_ADJOINT_SUPPORTED
    );

  void setFullyInitialized(bool isFullyInitialized = true);
  
  void uninitialize(
    RCP<Epetra_Operator> *op= NULL,
    EOpTransp *opTrans = NULL,
    EApplyEpetraOpAs *applyAs = NULL,
    EAdjointEpetraOp *adjointSupport = NULL,
    RCP<const VectorSpaceBase<double> > *range = NULL,
    RCP<const VectorSpaceBase<double> > *domain = NULL
    );

  RCP<const SpmdVectorSpaceBase<double> > spmdRange() const;

  RCP<const SpmdVectorSpaceBase<double> > spmdDomain() const;

  RCP<Epetra_Operator> epetra_op();

  RCP<const Epetra_Operator> epetra_op() const;



  void getNonconstEpetraOpView(
    const Ptr<RCP<Epetra_Operator> > &epetraOp,
    const Ptr<EOpTransp> &epetraOpTransp,
    const Ptr<EApplyEpetraOpAs> &epetraOpApplyAs,
    const Ptr<EAdjointEpetraOp> &epetraOpAdjointSupport
    );
  void getEpetraOpView(
    const Ptr<RCP<const Epetra_Operator> > &epetraOp,
    const Ptr<EOpTransp> &epetraOpTransp,
    const Ptr<EApplyEpetraOpAs> &epetraOpApplyAs,
    const Ptr<EAdjointEpetraOp> &epetraOpAdjointSupport
    ) const;



  RCP<const VectorSpaceBase<double> > range() const;

  RCP<const VectorSpaceBase<double> > domain() const;

  RCP<const LinearOpBase<double> > clone() const;


  
  std::string description() const;
  void describe(
    FancyOStream &out,
    const Teuchos::EVerbosityLevel verbLevel
    ) const;
  
  
protected:


  bool opSupportedImpl(EOpTransp M_trans) const;

  void applyImpl(
    const EOpTransp M_trans,
    const MultiVectorBase<double> &X,
    const Ptr<MultiVectorBase<double> > &Y,
    const double alpha,
    const double beta
    ) const;



  virtual bool supportsScaleLeftImpl() const;

  virtual bool supportsScaleRightImpl() const;

  virtual void scaleLeftImpl(const VectorBase<double> &row_scaling);

  virtual void scaleRightImpl(const VectorBase<double> &col_scaling);
  


  virtual bool rowStatIsSupportedImpl(
    const RowStatLinearOpBaseUtils::ERowStat rowStat) const;

  virtual void getRowStatImpl(
    const RowStatLinearOpBaseUtils::ERowStat rowStat,
    const Ptr<VectorBase<double> > &rowStatVec) const;



  virtual RCP< const SpmdVectorSpaceBase<double> > 
  allocateDomain(
    const RCP<Epetra_Operator> &op, 
    EOpTransp op_trans 
    ) const; 
  
  virtual RCP< const SpmdVectorSpaceBase<double> >
  allocateRange( 
    const RCP<Epetra_Operator> &op, 
    EOpTransp op_trans 
    ) const; 


private:

  // ////////////////////////////////////
  // Private data members

  bool isFullyInitialized_;
  RCP<Epetra_Operator> op_;
  RCP<Epetra_RowMatrix> rowMatrix_;
  EOpTransp opTrans_;
  EApplyEpetraOpAs applyAs_;
  EAdjointEpetraOp adjointSupport_;
  RCP<const SpmdVectorSpaceBase<double> > range_;
  RCP<const SpmdVectorSpaceBase<double> > domain_;

  // ////////////////////////////////////
  // Private member functions

  const Epetra_Map& getRangeMap() const;
  const Epetra_Map& getDomainMap() const;

  void computeAbsRowSum(Epetra_Vector & rowStatVec_in) const;

};  // end class EpetraLinearOp


RCP<EpetraLinearOp> nonconstEpetraLinearOp();


RCP<EpetraLinearOp>
partialNonconstEpetraLinearOp(
  const RCP<const VectorSpaceBase<double> > &range,
  const RCP<const VectorSpaceBase<double> > &domain,
  const RCP<Epetra_Operator> &op,
  EOpTransp opTrans = NOTRANS,
  EApplyEpetraOpAs applyAs = EPETRA_OP_APPLY_APPLY,
  EAdjointEpetraOp adjointSupport = EPETRA_OP_ADJOINT_SUPPORTED
  );


RCP<EpetraLinearOp>
nonconstEpetraLinearOp(
  const RCP<Epetra_Operator> &op,
  EOpTransp opTrans = NOTRANS,
  EApplyEpetraOpAs applyAs = EPETRA_OP_APPLY_APPLY,
  EAdjointEpetraOp adjointSupport = EPETRA_OP_ADJOINT_SUPPORTED,
  const RCP< const VectorSpaceBase<double> > &range = Teuchos::null,
  const RCP< const VectorSpaceBase<double> > &domain = Teuchos::null
  );


RCP<const EpetraLinearOp>
epetraLinearOp(
  const RCP<const Epetra_Operator> &op,
  EOpTransp opTrans = NOTRANS,
  EApplyEpetraOpAs applyAs = EPETRA_OP_APPLY_APPLY,
  EAdjointEpetraOp adjointSupport = EPETRA_OP_ADJOINT_SUPPORTED,
  const RCP<const VectorSpaceBase<double> > &range = Teuchos::null,
  const RCP<const VectorSpaceBase<double> > &domain = Teuchos::null
  );


RCP<EpetraLinearOp>
nonconstEpetraLinearOp(
  const RCP<Epetra_Operator> &op,
  const std::string &label,
  EOpTransp opTrans = NOTRANS,
  EApplyEpetraOpAs applyAs = EPETRA_OP_APPLY_APPLY,
  EAdjointEpetraOp adjointSupport = EPETRA_OP_ADJOINT_SUPPORTED,
  const RCP<const VectorSpaceBase<double> > &range = Teuchos::null,
  const RCP<const VectorSpaceBase<double> > &domain = Teuchos::null
  );


RCP<const EpetraLinearOp>
epetraLinearOp(
  const RCP<const Epetra_Operator> &op,
  const std::string &label,
  EOpTransp opTrans = NOTRANS,
  EApplyEpetraOpAs applyAs = EPETRA_OP_APPLY_APPLY,
  EAdjointEpetraOp adjointSupport = EPETRA_OP_ADJOINT_SUPPORTED,
  const RCP< const SpmdVectorSpaceBase<double> > &range = Teuchos::null,
  const RCP< const SpmdVectorSpaceBase<double> > &domain = Teuchos::null
  );


} // end namespace Thyra


#endif  // THYRA_EPETRA_LINEAR_OP_HPP